Vocabulary
Fossil Formation
Learning from Fossils
100

describes a group of living things that is no longer living

extinct

100

in petrified wood, the soft parts of the once-living plant were replaced by this

minerals

100

Scientists may learn what an animal ate by looking at the shapes of this fossil (hint: it is an animal body part)

teeth

200

the hardened remains of a living thing that died long ago

fossil

200

Animal fossils are more common than plant fossils because plants are _________ than animal bones. 

softer 

200
Scientists compare animal fossils to similar animals that are alive today. For example the elephant and the mammoth both have these.
What are tusks?
300

An individual animal, plant or single-cell life form

organism

300

We do not know what many ancient plants look like because they did this before they could form a fossil.

rotted away?

300

Fossils of fish have been found on mountain tops. What does this tell us about the past?

The mountains were once covered by water.

400

Fossils are usually found buried under these pieces of rock and soil?

sediment

400

A type of fossil that tells where an organism has lived or traveled (for example: a footprint) 

trace fossil

400

What is something you CANNOT learn from a fossil of a leaf? 

A. how BIG the leaf was

B. what COLOR the leaf was

C. what SHAPE the leaf was

D. how WIDE the leaf was

B. what COLOR the leaf was

500

when an insect gets stuck in tree sap and the sap hardens

amber

500

Describe the steps for a fossil to form in sedimentary rock.

1) soft parts of the animal decompose 2) hard parts of the animal are buried under layers of sediment 3) the bones and sediment turn into rock

500

Which of these creatures is extinct?

A. Elephant

B. Camel

C. Woolly Mammoth

D. Hippopotamus 

C. Woolly Mountain 

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